衍射圈diffractiongrating: 衍射光柵diffractional pulse-height discriminator: 脈沖振幅選擇器diffractiongroup: 衍射群diffractional loss: 衍射損耗diffractionist: 衍射學(xué)家下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯